+++ /dev/null
-;;; esh-toggle --- toggle to and from the *eshell* buffer
-
-;; Copyright (C) 1997, 1998 Mikael Sjödin (mic@docs.uu.se)
-
-;; Author: Mikael Sjödin <mic@docs.uu.se>
-;; John Wiegley <johnw@gnu.org>
-;; Created: 19 Nov 1998
-;; Version: 2.0
-;; Keywords: processes
-;; X-URL: http://www.emacs.org/~johnw/eshell.html
-
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 2, or (at
-;; your option) any later version.
-
-;; This program is distributed in the hope that it will be useful, but
-;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;; Provides the command eshell-toggle which toggles between the
-;; *eshell* buffer and whatever buffer you are editing.
-;;
-;; This is done in an "intelligent" way. Features are:
-;;
-;; - Starts a eshell if non is existing.
-;;
-;; - Minimum distortion of your window configuration.
-;;
-;; - When done in the eshell-buffer you are returned to the same
-;; window configuration you had before you toggled to the eshell.
-;;
-;; - If you desire, you automagically get a "cd" command in the
-;; eshell to the directory where your current buffers file exists;
-;; just call eshell-toggle-cd instead of eshell-toggle.
-;;
-;; - You can convinently choose if you want to have the eshell in
-;; another window or in the whole frame. Just invoke eshell-toggle
-;; again to get the eshell in the whole frame.
-;;
-;; This file has been tested under Emacs 20.2.
-;;
-;; To use, call the functions `eshell-toggle' or `eshell-toggle-cd'.
-;; It's most helpful to bind these to a key.
-
-;;; Thanks to:
-
-;; Christian Stern <Christian.Stern@physik.uni-regensburg.de> for
-;; helpful sugestions.
-
-;;; User Variables:
-
-(defvar eshell-toggle-goto-eob t
- "*If non-nil `eshell-toggle' moves point to end of Eshell buffer.
-When `eshell-toggle-cd' is called the point is always moved to the
-end of the eshell-buffer")
-
-(defvar eshell-toggle-automatic-cd t
- "*If non-nil `eshell-toggle-cd' will send a \"cd\" to Eshell.
-If nil `eshell-toggle-cd' will only insert the \"cd\" command in the
-eshell-buffer. Leaving it to the user to press RET to send the
-command to the eshell.")
-
-;;; User Functions:
-
-;;;###autoload
-(defun eshell-toggle-cd ()
- "Calls `eshell-toggle' with a prefix argument.
-See the command `eshell-toggle'"
- (interactive)
- (eshell-toggle t))
-
-;;;###autoload
-(defun eshell-toggle (make-cd)
- "Toggles between the *eshell* buffer and the current buffer.
-With a prefix ARG also insert a \"cd DIR\" command into the eshell,
-where DIR is the directory of the current buffer.
-
-Call twice in a row to get a full screen window for the *eshell*
-buffer.
-
-When called in the *eshell* buffer returns you to the buffer you were
-editing before caling the first time.
-
-Options: `eshell-toggle-goto-eob'"
- (interactive "P")
- ;; Try to descide on one of three possibilities:
- ;; 1. If not in eshell-buffer, switch to it.
- ;; 2. If in eshell-buffer and called twice in a row, delete other
- ;; windows
- ;; 3. If in eshell-buffer and not called twice in a row, return to
- ;; state before going to the eshell-buffer
- (if (eq major-mode 'eshell-mode)
- (if (and (or (eq last-command 'eshell-toggle)
- (eq last-command 'eshell-toggle-cd))
- (not (eq (count-windows) 1)))
- (delete-other-windows)
- (eshell-toggle-buffer-return-from-eshell))
- (eshell-toggle-buffer-goto-eshell make-cd)))
-
-;;; Internal Functions:
-
-(defvar eshell-toggle-pre-eshell-win-conf nil
- "Contains window config before the *eshell* buffer was selected")
-
-(defun eshell-toggle-buffer-return-from-eshell ()
- "Restores window config used before switching the *eshell* buffer.
-If no configuration has been stored, just bury the *eshell* buffer."
- (if (window-configuration-p eshell-toggle-pre-eshell-win-conf)
- (progn
- (set-window-configuration eshell-toggle-pre-eshell-win-conf)
- (setq eshell-toggle-pre-eshell-win-conf nil)
- (bury-buffer (get-buffer "*eshell*")))
- (bury-buffer)))
-
-(defun eshell-toggle-buffer-goto-eshell (make-cd)
- "Switches other window to the *eshell* buffer.
-If no *eshell* buffer exists start a new eshell and switch to it in
-other window. If argument MAKE-CD is non-nil, insert a \"cd DIR\"
-command into the eshell, where DIR is the directory of the current
-buffer.
-Stores the window cofiguration before creating and/or switching window."
- (setq eshell-toggle-pre-eshell-win-conf (current-window-configuration))
- (let ((eshell-buffer (get-buffer "*eshell*"))
- (cd-command
- ;; Find out which directory we are in (the method differs for
- ;; different buffers)
- (or (and make-cd
- (buffer-file-name)
- (file-name-directory (buffer-file-name))
- (concat "cd " (file-name-directory (buffer-file-name))))
- (and make-cd
- list-buffers-directory
- (concat "cd " list-buffers-directory)))))
- ;; Switch to an existin eshell if one exists, otherwise switch to
- ;; another window and start a new eshell
- (if eshell-buffer
- (switch-to-buffer-other-window eshell-buffer)
- (eshell-toggle-buffer-switch-to-other-window)
- ;; Sometimes an error is generated when I call `eshell' (it has
- ;; to do with my eshell-mode-hook which inserts text into the
- ;; newly created eshell-buffer and thats not allways a good
- ;; idea).
- (condition-case the-error
- (eshell)
- (error (switch-to-buffer "*eshell*"))))
- (if (or cd-command eshell-toggle-goto-eob)
- (goto-char (point-max)))
- (if cd-command
- (progn
- (insert cd-command)
- (if eshell-toggle-automatic-cd
- (eshell-send-input))))))
-
-(defun eshell-toggle-buffer-switch-to-other-window ()
- "Switches to other window.
-If the current window is the only window in the current frame, create
-a new window and switch to it. (This is less intrusive to the current
-window configuration then `switch-buffer-other-window')"
- (let ((this-window (selected-window)))
- (other-window 1)
- ;; If we did not switch window then we only have one window and
- ;; need to create a new one.
- (if (eq this-window (selected-window))
- (progn
- (split-window-vertically)
- (other-window 1)))))
-
-(provide 'esh-toggle)
-
-;;; esh-toggle.el ends here
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